| abstract |
PCT No. PCT/US92/03648 Sec. 371 Date Apr. 7, 1994 Sec. 102(e) Date Apr. 7, 1994 PCT Filed Apr. 30, 1992 PCT Pub. No. WO92/19101 PCT Pub. Date Nov. 12, 1992A coating (17) and a method for its preparation are disclosed which will restrict the movement of insects over a skewed surface (15) to which the coating is applied. The coating (17) is an adherent thin film comprised of particles of less than 5 microns. The dispersions are prepared using a surfactant. The surfactant may be removed, at least in part, from the film by leaching or evaporation. The dispersion may also include a dispersing agent which need not be removed from the film. Stabilizing agents may be added to protect the dispersions from freeze/thaw cycles. The coatings (17) are preferably applied by spraying or roller coating the dispersion over the surface (15). |